Idj 3 and Mixvibes!

So my friend and partner at a venue bought an Idj3 but for some reason it will work with other programs but when it comes to Mixvibes the Headphones part of the MIDI controller does not work so i cant preview anything using this controller. but when my friend switches it to VDJ it works with no problems. I dont want to use VDj. what do i do?
P.S. my friend also bought the Hercules MIDI controller and i hope there isnt any problems like that. Am i doing something wrong?
P.S. my friend also bought the Hercules MIDI controller and i hope there isnt any problems like that. Am i doing something wrong?